Are you sure you only added RAM? I've seen this behaviour before, but only because some (unwanted) hidden application was hogging the focus. Check what is run on startup. (see support.microsoft.com/kb/179365 )
–
Stijn SandersDec 4 '09 at 18:40

1 Answer
1

Are you sure you only added RAM? I've
seen this behaviour before, but only
because some (unwanted) hidden
application was hogging the focus.
Check what is run on startup. (see
support.microsoft.com/kb/179365 ) –
Stijn Sanders

I used sysinternals autoruns and found two startup programs that I thought I had disabled that were re-enabled (one was sigmatel audio), then restarted Windows. My computer no longer has this problem... not sure exactly what caused it but it's gone.